The episode opens in in the 1990s, where young Park Hoon and his father, a brilliant thoracic surgeon, are forced to work in a brutal labor camp. One day, Hoon's father is secretly taken to operate on a high-ranking political prisoner. Later, a young girl named Song Jae-hee arrives at the camp, and she and Hoon form a close bond.

Years later, Hoon has grown into a talented doctor trained by his father. He and Jae-hee are shown as young adults in love. To escape North Korea, they attempt a dangerous mission. During the escape, Hoon is shot and falls into a river, while Jae-hee is captured. Hoon is rescued and eventually makes his way to .

Once in Seoul, Hoon (now played by ) uses his exceptional surgical skills to join the prestigious Myungwoo University Hospital . The episode ends with him meeting a woman who looks exactly like Jae-hee, setting up the central mystery of the series.

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